package com.hschinese.pronunciation.utils;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class MD5Utils {
	public static String getMD5(String val) throws NoSuchAlgorithmException {
		MessageDigest md5 = MessageDigest.getInstance("MD5");
		md5.update(val.getBytes());
		byte[] m = md5.digest();//加密
		return getString(m);
	}
	private static String getString(byte[] hash){
//		StringBuffer sb = new StringBuffer();
//		for(int i = 0; i < b.length; i ++){
//			sb.append(b[i]);
//		}
//		return sb.toString();
		
		StringBuilder hex = new StringBuilder(hash.length * 2);
	    for (byte b : hash) {
	        if ((b & 0xFF) < 0x10) hex.append("0");
	        hex.append(Integer.toHexString(b & 0xFF));
	    }
	    return hex.toString();
	}
}
